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- Penicillin G potassium 5000 units Isotonic Sodium Chloride Solution ad 15 mL Sig. Nose drop Using soluble penicillin tablets, each containing 100,000 units of crystalline penicillin G potassium, explain how you would obtain penicillin G potassium needed in compounding the prescription.Table 4- Determination of the optimum pH of catechol oxidase enzyme Potato extract (mL) Tube # 2d 3d 4d 5d 6d 7d dH₂O (mL) 0 0 0 0 0 0 Catechol (mL) 6 6 6 6 6 6 pH buffer added 4mL pH 2 4mL pH 4 4mL pH 6 4mL pH 7 4mL pH 8 4mL pH 10 1 1 1 1 1 1 Absorbance (0 mins) A: 0.010 Start Time: 3:24 A: 0.008 Start Time: 3:34 A: 0.023 Start Time: 3:36 A: -0.006 Start Time: 3:36 0.018 A: Start Time: 3:36 A: 0.011 Start Time: 3:36 Absorbance (after 10 mins in 40°C water bath) -0.030 A: Take reading at: 3:44 A: 0.154 Take reading at: 3:46 A: 0-105 Take reading at: 3:46 A: 0-132 Take reading at: 3:46 A: 0.074 Take reading at: 3:46 A: 0.018 Take reading at: 3!46 Q15) What is the enzyme's optimum pH(s)? Answer: Q16) Use the difference between 2nd and 1st absorbance to support your conclusion for the optimum pH. Subtract Omin from 10min absorbance -0.04 0.0012 0.082 0.138 0.056 0.00710 tab of acetaminophen 500 mg molar absorptivity= 14520 @ 243nm. The total weight of the 10tab is 5278 mg. I take a sample equivalent to 100mg of tablet and I diluted it in 100mL, I took an aliquot of 10mL and I diluted it in 250mL, of these I took 25mL and I diluted them in 250mL. Calculate the weight per tablet. Absorbance = 0.944
- Using DEAE-cellulose as ion exchange resin, indicate the starting and ending pH for the narrowest experimental pH range used to separate an amino acid mixture consisting of Gln, Leu and Lys Starting pH: _____ Ending pH: _____Size Size Crude Anion Cation 2) Exclusion Exclusion Lysate Exchange Exchange 1 2 Total Protein Concentration 15.2 6.6 2 3.75 4.7 (mg/mL) Final Sample Volume 60 30 20 4 3 (mL) Enzyme Specific Activity 0.43 1.7 7.25 18.3 12.5 (units/mgprotein) Based on your protein purification sample data, in which of the purification steps in your protocol did you effectively purify your enzyme? Select all that apply. a) anion exchange correct b) cation exchange correct c) size exclusion 1 correct d) size exclusion 2Choline test procedure (chemical reagents added), positive results/observations, and positive for (provide details like functional group responsible and list of lipids that will yield positive results)
- Composition (+) of reagents Test Importance of the test Group Result Responsible Violet Peptide linkages (at (+) to tripeptide & up (+) to proteins Biuret's NaOH + CuSO4 Soln. least 2 or more) Ninhydrin Millon's Hopkin's-Cole Red. S ulfur Sakaguchi Xanthoproteic NitroprussideThe reults for the macroscopic part: 0.30M glycerin – solution was translucent (could see text behind the test tube) 0.15M NaCl – solution was opaque (could not see text behind the test tube) 0.30M NaCl – solution was opaque (could not see text behind the test tube) 0.15M glucose – solution was translucent (could see text behind the test tube) 0.30M glucose – solution was opaque (could not see text behind the test tube) 0.30M Urea – solution was translucent (could see text behind the test tube) Results for microscopic part: 0.30M glycerin – no cells present 0.15M NaCl – normal sized cells 0.30M NaCl – crenated (shrunken and star-shaped) cells 0.15M glucose – no cells present 0.30M glucose – normal sized cells 0.30M Urea – no cells present Determine the osmolarity (hypoosmotic, isosmotic, or hyperosmotic) and tonicity (hypotonic, isotonic, hypertonic) of the following solutions.In which solutions did the osmolarity NOT match the tonicity? For those solutions, why did the osmolarity…Color Reactions Test Composition of Reagents Observation/s Molisch Seliwanoff Osazone Lugol (Iz in KI) Bial Fehling Benedict Barfoed Tollen
- What is the major biochemical function of each of the following proteins? α-Keratin _____________________________________ Collagen _____________________________________ Hemoglobin _____________________________________ Myoglobin _____________________________________Part I. For each of the following four questions: calculate and describe how the requested solution would be made. Please show all of your calculations. In all cases the diluent or solvent will be water. Also, assume the smallest volume you can accurately pipette is 1ul. (CaClh: Molecular weight = 111.0 - NaCl: Molecular weight= 58.44) 1. From a 3M CaCh stock solution, you need to make 600 ml of 9 mM CaClh. Indicate how you would make it. 2. You have a 20ul sample of DNA that you want to run in a gel. You are given 5X track dye; how much track dye do you add to your sample so that the track dye concentration in the sample is 1X? 3. You need to make 6 liters of 20% NaCl solution. Indicate how you wvould make it firom powdered NACI.How much agarose need for 40 mls of 1.5%w/v gel